we're back with these photographs from wgha which show fragments of the deadly bomb. these pictures could be vital clues and we'll have more of those on midnight. "anderson cooper" starts now. good evening, everyone. it is 10:00 here in boston and there are late developments on the bombing and the breaking news back in washington as well. we've just gotten photos of what is left of one of the pressure cookers likely used to make the crude bombs. they come in from local station wga. these are evidence photos taken by authorities. one of the fragments, you can see part of a logo and what appears to be a serial number or product i.d. here's another shot with possibly traceable numbers, the

pictures, some of which appear to be taken after the scene also show the remains of a shredded black knapsack or backpack, all of which seem to be managed by authorities. they are sent out to agencies so everyone can compare notes. there is this photo as well from local affiliate wga showing a bag by a mailbox where the first bag went off at the finish line. the question tonight, was it one of the bombs? the fbi is analyzing it along with fragments of the pressure cooker. there is that and there is this. breaking news out of washington, letter to the senator testing positive both in the field and in the lab for the deadly poison lab. dana bash is going to be working her sources on that. she'll be joining us shortly. we'll also hear from the people w whose family members lost their lives. we know there was a chinese national, a grad student at boston university not far from

here. her name is being withheld at the request of her family. we also learned about krystle campbell. she died in the blast. she came yesterday to watch her friend cross the finish line. her mom says she worked 16-hour days at a local seafood restaurant but was never too tired to share her love, never too tired to share her smile. she was 29 years old. martin richard was just eight years old. his sign says, no more hurting people. dozens of lives changed forever. we honor them tonight and we also honor this strong city. this is not a city under siege. this is not a city of fear tonight. yes, people may be holding their kids a little tighter, keeping their eyes open a little wider, but this is a city where today life and love and liberty continue. people went jogging today. they walked their dogs, they brought their children to the

playground and to the schools. boston has been battered, yes, but it is by no means broken. not now, not ever. we have learned from 9/11 and perhaps what we've learned most is that in the face of horror and hate, we must all stand tall, stand proud and stand together and never, ever let anyone with a bomb and a backpack stop us from moving forward. never let anyone with a bomb and a backpack stop us from crossing that finish line. a lot to cover tonight. let's start by quickly updating you on where things stand. >> targeting the most photographed spot that day in a crowded city full of cameras may have sewn terror. it may also have ultimately sealed the bomber's fate. >> any photographs that happened not just at that scene but anywhere in the immediate vicinity could be helpful to this investigation. >> they're already looking at hundreds of videos and photographs, searching for a face, a bundle, a bomb.

two devices, not more as first reported and feared. >> all other parcels in the area of the blast have been examined, but there are no unexploded bombs. there were no unexplosive devices found. >> and the two that caused all this, explosives and shrapnel, packed into pressure cookers stuffed into sacks likely detonated by cell phones. also a device a would-be bomb could be found on the internet, crude, deadly and troubling. >> these pressure cook erers ar tactic technique used by the taliban and al qaeda and afghanistan. they pick these pressure cookers up wherever they can, and they use them to make their ieds. >> the investigators are looking at it as an act of terror. any time a bomb is used around civilians, it is an act of terror.

>> terror, he went on to say, murder, maiming by persons unknown. nash nags nationality unknown. allegiance unknown. >> a senior u.s. official is now telling me that, quote, there is no reporting indicating a foreign connection or any reaction from al qaeda. >> so it might be the video that tells, or the forensics. the crime scene still hot, still active. it's already borne witness to ordinary people doing extraordinary things to stop the bleeding, to ease the suffering, and to start the healing. >> more now on the investigation. the fragments, the possible pressure cooker we just saw as well as shreds of what might be that black nylon bag that the fbi says the bombs were stuffed in. that plus the new photo i showed you a minute ago that might show

a bag at the first bomb blast. griffin and john king are with me tonight. they've been working their sources well into the day and into the night. also fran townsend is doing the same for us in washington. john, the photos the fox affiliate in atlanta first showed that we're showing now, what do you make of them? >> sources confirm they are legitimate and taken from the scene. what they tell you, anderson, the very impressive job in the 30 hours or so since the bombing is telling what the bomb was made of, how it was constructed and how it got there in the timing. 6-litre pressure cooker. they believe there are two of those devices. they've recovered some of the fragments. those are now at the quantilab. the question of who, that's why you have the public appeal from the fbi. all these parts, including debris from the pressure cooker, some pieces of the fabric of the

backpack. could there be a fingerprint, some dna evidence that links it to an individual? and if that doesn't, could you get something from the serial number, something from the brand name, something that you could trace it back from where it was purchased and maybe get clues from who it was purchased. they've made a lot of progress. to the big question, who? >> if there is any kind of serial number on that pressure cooker we've seen in the photo, that would be a big break in allowing them to perhaps figure out where it was purchased. >> you could tell perhaps what chain sold it, where the manufacturer sends this stuff, and then you do actual, you know, strong footwork, sending detectives out to these stores, going through the receipts as the fbi sack said today. but also very interesting, the photos we're seeing, anderson, is part of this bulletin that's gone out. the bomb community in the united states is a very small fraternity. they share information with each other because it's such a dangerous thing. so what they're also doing in releasing these two within that

community is saying, hey, did you ever have a case like this? has there been any bombs found? did you find any kids, anybody practicing with cookers somewhere in the last couple of years, couple of weeks, couple of days? anything that would spark a connection here? it is sort of rare to have pressure cooker bombs, it is. it's not hard to make, apparently, but there might be some kind of link that will give them an edge, and that's why they sent out this bulletin, or one of the reasons they did. >> and fred townsend, you're also joining us. there is a backlog of intelligence on the international front that would still have to be gone through, correct, signals, intelligence, all sorts of reports. >> that's right, anderson, and so the bomb forensics that drew and john are talking about will then be taken and try to match that up, link that, if you will, with photographs, video surveillance, cell phone surveillance and the international intelligence that

you're describing. all of that is the sort of stuff that you've got to weave together to try and make sense of the who. the who is the big question. you know, we talk a lot about is it a domestic -- was it a domestic-driven attack, a foreign attack, or, frankly, a combination, right, a home-grown jihadist who was inspired by nedal and his sons. we've seen these pressure cookers before. the times square bombing did use pressure cookers. that was unsuccessful. you have to say to yourself this person didn't put together one that went off, they put together two. did they act alone or was it part of a small group? all those are questions that remain sort of unanswered tonight. >> drew, my understanding is that the pressure cooker found in the vehicle in times square is different than the kind of device they're seeing this time around, is that correct? >> the pressure cooker, if i remember correctly now, that was found at times square was not the actual device that was going to explode. it contained wires, it contained equipment, it contained things

you would want to keep weather proof. >> you actually have a pressure cooker here. >> i have a pressure cooker. we have no idea what kind of pressure cooker was used in this case for two reasons. one, it's pretty easy to get. i went to a local chain and bought it for $42, right? also, this fits into anything you see around here, any kind of black nylon bag. all these runners we've been seeing walking around with backpacks, everybody could have this in their backpack, so it's very easy to contain, put stuff inside it. you know, it's hard to defend even though there were two bomb sweeps at that very location, it's very hard, with the amount of people and the openness of our society, the openness of boston. >> it does seem, though, given if there were timing devices involved, it seems like there would be a certain window of time that authorities would know to look at. this is not a device that could have been placed a day or two in advance. >> as to the timing devices, i'm also told that at least one circuit board was recovered in the proximity of one of the

pressure cooker pieces, so they believe the circuit board was part of a timing trigger. that is why the video surveillance and a frantic force to piece it together is so important. you have adignitaries, more security at the finish line. as things got a little bit looser, the crowd at the finish line is changing. the elite people leave, the everyday runners, the friends and family of people who ran four hours, that's when they start to show up. that is when they think these devices were placed. they are hoping, they don't see it in any video yet, they are hoping to see some video or some surveillance camera that shows a block, a placement. that's what they're trying to put together. >> fran, what is the significance of a circuit board? >> apparently it's a crude device available on the internet.

it doesn't take that many component pieces. you need a circuit board, you need the timing device. these get linked up in a fairly crude what you call closed circuit, and that's how you detonate it. what it does is it ignites the powder, we presume in this case, gunpowder inside, pressure builds, and it builds to the point that what actually explodes is the pressure cooker from the buildup of gas inside. >> and, fran, for our viewers, we should point out this is the kind of information which is readily available on the internet, unfortunately, these days, and which people have known about for years. i just don't want people to think we're giving away instructions on how to make this sort of device. john and drew, i appreciate the reporting, fran as well. at the risk of embarrassing my next guest, people did heroic things yesterday. boston medical center, dr. natalie stavish. she was certainly one of them. she was running her race with her dad near the finish line when the explosions hit. she swung into action helping to

try to save lives. dr. stavish, thanks so much for being with us. >> thanks so much. >> we talked two hours ago, and i don't want to make you constantly relive this, but i do think it's sort of important to highlight what you and others did, which was running toward this blast to try to do what you could to help. you had finished this race or you were in the final stretch of the race, you were exhausted, you heard the blast and you knew you had to do something. >> i did. i did. i think a lot of us, especially a lot of us who go into the medical field have this instinct, right, this instinct that we need to be there, we can be there, and we can help. and that instinct kicks in and you can think of nothing else. you also have the instinct when you're a marathon runner that i just need to get to the finish line, right? so you've got two of those things together and it creates one powerful surge, a surge of emotion and fear and intensity. >> you never know, though, how you're going to react.

people who think they're going to be calm and controlled freak out, and people who think they're going to freak out actually find themselves calm and able to operate. you were clearly able to operate. when you ran toward the scene, can you describe what it was like? >> yeah. it was -- it was very -- i had this one thought in my head that i need to get there to help these people, and that's all i could focus on at that time. there had to be something i could do to help these people. fortunately, you know, after i told one of the police officers that i was a pediatric resident, they said, we need your help at the front, doctor. we need you to be there and help us, and they tried to run with me down to escort me down but i sprinted ahead of them. >> you were running faster than them even after running a marathon. >> i was. >> were you talking to people? the people you were treating, were they unconscious?

>> the first woman that i saw was unconscious. i never did speak to her. the second woman i saw, she had a wound in her groin, and i told her that we were putting pressure on her groin and an ambulance would be there soon. the third man i saw with the foot injury, he kept saying, am i going to be okay, doctor, am i going to be okay, doctor? i tourniqueted his leg and i just looked at him and said, yes, you're going to be okay. >> did you believe that at the time? >> i think so. i think i did. i believed it. i was hoping it. i was hoping it for sure. anderson, it just breaks my heart that these spectators who came to watch us run who are most of the reason why we get through the marathon is because of these people and their generosity and their spirit, and to see them suffering, it's just gut wrenching. >> i talked to a spectator today

who is in the hospital, and we're going to play some of that a little later in the broadcast. what he remembers was the first thing was runners taking off their shirts running to him and tying tourniquets around his leg with their shirts. so i think many of the spectators i know feel glad that they were there despite all that happened, and i talked to the man today and he said he would go back next year. he would do it again. >> wow. that's powerful. >> how do you -- i mean, process is such a stupid word, but how do you deal with this? you see a lot of terrible things in your work, but to see it on a mass scale like this in a place you didn't expect, how are you doing? >> i'm doing okay. we have -- we have wonderful support systems in the residency program that i'm in, people reach out. people who reach out to you in a time of tragedy. i am so blessed. my family is safe, my mom was 100 feet from the blast, my dad

was right behind me, and we're safe, and i just -- i feel such a loss -- i feel such a loss for the people, and whether or not this is true or how i should feel, i almost feel a sense of responsibility. they were there cheering for me, for me as a collective group, and it's just hard to process that something tragic happened because they were there for me. >> yeah. i think all of us are so moved by your response and by the response of so many citizens and first responders, and people could have left, could have run away but didn't at a great risk to themselves. >> i'm thankful, too, for people who came in, both physicians and civilians, everyone. wow. >> i want to bring in dr. san jay gupta.

it made such a difference because there were doctors there and a triage set up. >> she saved lives almost assuredly because simply being able to stop bleeding in a situation like that long enough to allow the transport to happen, to get someone to a hospital makes a huge difference. we're used to talking about that context on battlefields, but not in a mass casualty sort of situation like this suddenly became. and, again, she just ran four hours and was still able to do this. that's pretty extraordinary. >> did you know instantly that -- i mean, just by the nature of the wounds that this was some sort of explosive device and it had been low to the ground? it seemed like most of the injuries were lower extremities. >> all i can say is i knew it was something horrific, and i was treating people, and i was trying to triage people and running to people, and i kept saying to myself, this can't be

real. i must have passed out from dehydration or something. this must be a dream at the end of the marathon. and i kept saying, this can't be real, this can't be real. oh, my god, i've never seen anything like this. the casualties and the amount of -- the damage that was done to some of these people. >> does it feel real now? because often in a situation like this, you know, to front line a few blocks from here and you walked a few blocks today, and there were people out running and walking their dogs and playing with their children. >> i know. i just -- it feels real and it feels very sad. it's a deep sadness that i feel that's very hard to explain. >> there's also, i sense, and maybe either of you can speak to this. just in talking to people today, just people out walking with their kids and playing, there is a sense of defiance, that people do not want this to define the

city, to define who we are, and a sense of we need to stand tall in the face of this and live our lives and be defiant. >> i think there is a great spirit in the city, and i think there is a great spirit amongst runners in general and amongst the crowd that supports us. and i feel like in times like this, people come together, and my dad made a real good analogy. at the end of the race was heartbreak hill, and this is almost like the heartbreak hill part and we're trying to help each other through it. and hopefully at the end, we'll be able to come out with some sort of peace and an ability to move forward. i know i plan on running the marathon next year. >> you do. >> i do. and i hope my dad will run it with me so we can cross the finish line as planned, cheesingly holding hands for the

picture. >> i'd like to think i could run it. >> you can run it. i believe in you. >> we'll see. it's hard to train. doctor gupta, a number of patients have already been released but a number of patients will be in the hospital for a long time. >> i think so. there are nine hospitals who have these patients, and some are in critical condition. critical condition means just that. their vital signs are unstable to the point where doctors and nurses are quite concerned about them, and that's going to be a long road. even for the patients that are now improved but have undergone these amputations, just the rehab and all the things that go into their lives from now on, that's going to be quite a road for them. so this is -- you know, we talk about this every time, anderson, the news cycle will continue for a period of time, and there will be a lot of this galvaniization

around these people, and hopefully when you leave they will continue to get that support. >> none of us will ever forget this, and i'll never forget the efforts of all of those. >> thank you, anderson. thank you. >> we were talking a moment ago about a man i visited in the hospital earlier who owes his life to critical action on the scene. his name is ron bussard. take a look at what we talked about today. >> it was just this explosion, and very nearby. it was so close that you couldn't hear after the explosion. >> really, so you couldn't actually hear anything? >> i could see people's mouths moving and stuff, but i couldn't hear anything. >> how close were you? >> i think we were probably about 10 feet away. when we saw on the news today where the explosion occurred. >> he considers himself, obviously, very lucky and he wanted to make sure that everybody knows his thoughts are with those whose lives were lost

and those less fortunate than he is, and his wife is at a separate hospital. they hope she will be transferred to tufts medical center so they can at least be together and see each other regularly. let us know what your thoughts are on this this evening. you can twitter me at anderson@andersoncooper. we have the latest on the poisoned rice. remember those who lost their lives in the tragedy. martin richard, an eight-year-old boy with big dreams for his future. we'll take a look at his life and the life of 29-year-old krystle campbell who went to watch the marathon every single year, wouldn't miss it for the world. we remember the victims and we want to tell you about their lives, ahead. turn to senokot-s tablets. senokot-s has a natural vegetable laxative ingredient plus the comfort of a stool softener for gentle, overnight relief of occasional constipation. go to senokot-s.com for savings.

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welcome back for live continuing coverage from boston. we have more breaking news tonight. a letter that tested positive for poisoned rice was reviewed in the capitol's mail facility in washington. they said the letter did test positive for rice and it was addressed to the office of republican senator roger wicker of mississippi. the letter is undergoing further testing. senator wicker now has a

protective detayil assigned to him. we have dana bash live. the initial testing was positive. further testing is going on now. what's the latest you've heard? >> well, anderson, we can now report from the senate sergeant in arms terry gaynor that the envelope did test positive today at the actual lab, so they feel confident at this point that it is a positive test for rice. they had the initial test, as you pointed out, in the field office which historically are not that reliable but this was done in the actual lab. the other things we can report are the mysterious markings on the envelope sent to senator wicker are not outwardly suspicious, but it was postmarked from memphis, tennessee which is not far from wick r's home state of mississippi. it had no return address, and at this hour one senator thought there was a suspect in custody. we can report that it is still

an ongoing case and that is not true. senate officials are taking precautions. they've closed the postal facilities. i believe we have a picture of the one -- there you see it, the one where this particular letter was sent. they closed them for two or three days while the testing goes on, while law enforcement continues to investigate. so this is something that is very, very important to senators, as you can imagine, and they got a briefing earlier tonight about everything that has gone on. >> we should also point out that mail at the capitol doesn't go directly to congressional ofrsz anymore. >> it doesn't. the first stop for capitol mail right now is for off-site facilities like the one we just showed you. it doesn't come directly to the capitol complex and there is a specific reason for that, exactly what we're seeing tonight, the concern that people will send things that are toxic or poisonous. and that is because of what happened back in 2001. a couple senate offices received letters that were laced with anthrax. senators say tonight that

they're happy that this process changed all those years ago, because in this case, the process worked. >> dana, i appreciate the reporting. thank you very much. joining me right now live is former new york city mayor rudy giuliani. mayor, i appreciate you being with us. you obviously have experience with a city that's come under attack. this is the kind of attack that big cities have been on the lookout for and really concerned about for years now. what do you make of where this investigation is? >> well, you know, this is the kind of attack that i thought, and i think many others did, was going to happen quite frequently after september 11. i think we first have to say that we're fortunate we've been able to stop so many of them. i think the government has done a good job of interrupting many of these attacks that could have taken place. this one is really horrible. horrible because of the death of a young child. the other fatalities that took place, the injuries, the reality that no matter how hard you try, no matter how good a job you do, and i have no doubt the boston

police did a great job in policing the marathon, these people, whoever they are, can get through. and we don't know yet what this is. is it idealogically based? is it some kind of an insane situation? there is no way of knowing right now, you know, exactly what it is. all we can do is speculate. >> in terms of, you know, fears -- i've talked to so many people today who said, look, we don't want to live in fear. we don't want this to change the way we live, and i think that's an important message to get across. but at a public event, there is no way you can have 100% safety. >> no question about it. i've faced it many, many times when i was mayor of new york. we almost canceled the marathon in 2001 because it was shortly after september 11. big debate about whether to go forward with it. we almost canceled the millenium celebration in 2000. i think they canceled the one in seattle as a result of terrorist threats. while they're going on, you

wonder, did you make the right decision? you often say a little prayer. i remember getting up at the celebration in 2000 thinking, well, if anybody is here, i'm dead. i mean, so these are threats we live with, but the reality is, and this is hard for people to absorb a day after an attack like this, this is not the way you're going to die. the reality is there are many, many more things to threaten us far more than terrorism. these are terrible when they happen. it is hardly any solace to someone who has lost a child or lost an arm, but the reality is the threat of terrorism is sporadic, and then the way they use it, they sort of spread that fear by frightening us so much. >> i also feel sort of a sense of defiance among people here that i think we've really learned from 9/11, a sense of kind of fighting back, and i think we saw that in the her oim

of the first responders and the citizens who rolled up their sleeves and ran toward the blast to those in need. >> wasn't that fantastic? i said that to mayor menino tonight, it reminded me of my firefighters and police officers and citizens on september 11. as soon as i got out of the building we were trapped in, the first thing i looked for was how were they reacting, how were they acting, and wait they were acting was very brave, very calm, helping each other, firefighters, police officers going in and trying to take people out. when you look at that film footage, you see the firefighters and police officers jumping over the fence, it looks like, and then some of the runners jumping over the fence headed right for the flames. and, boy, that gives you a sense that these people in boston are pretty darn tough, just like the people in new york and just like the people all over america. >> yeah, i talked to a man we just played part of the interview in a hospital who was wounded, and he said the first people who got him were actually runners and the first thing they

did was rip off their shirts and made tourniquets to try to stop the bleeding on his leg. i think that's sort of an important image to put out there. mayor giuliani, i really appreciate you being with us tonight. >> really good coverage, anderson. it's terrific. >> thank you very much. i appreciate it. it's a privilege to be in this city at this time. just ahead, we're going to talk to some of those people just like you've been talking about who ran into danger to save lives. we'll be right back. hina, brazil, india. the world's a big place. i want to be a part of it. ishares international etfs. emerging markets and single countries. find out why nine out of ten large professional investors choose ishares for their etfs. ishares by blackrock. call 1-800-ishares for a prospectus, which includes investment objectives, risks, charges and expenses. read and consider it carefully before investing. risk includes possible loss of principal. we know the value of your at ueducation of phoenix is where it can take you. [now arriving: city hospital]

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>> show me that flag. >> this is the flag i was holding the whole time, and this is how the flag ended up, carrying the blood of all these victims. >> that was carlos arendondo. when many people acted heroically yesterday, he lost a son in iraq, he lost another son to suicide. he had people running in honor of his sons during the race. when the bomb went off, he ran right toward the explosion. he helped a man who lost both of his legs, likely helped save that man's life. just one of the many heroes who rose up after the explosions. despite the heroic efforts of so many people, three lives were lost. the chinese consulate in new york tonight is saying they've confirmed that one chinese citizen was killed. she was a graduate student of boston university. as we said earlier, her name is not being released at the request of her family. also killed, 29-year-old krystle campbell, and adding tragedy on top of tragedy, a doctor at the hospital mistakenly telling her

parents she was alive. >> reporter: krystle campbell's mother patty so overcome by grief as she stood on her front porch, each word was a struggle. >> we are heartbroken at the death of our daughter, krystle marie. she was a wonderful person. everybody that knew her loved her. >> a family spokesman finally had to read her statement and say what she could not. >> everyone who knew her loved her. she was sweet and kind and friendly, always smiling. she worked so hard at everything she did. >> krystle campbell's story, a tragic case of mistaken identity. the 29-year-old had gone to the marathon with her friend. both were caught in the first explosion. her parents say doctors told them her daughter survived and they were trying to save her leg. but when campbell's parents were finally allowed to see her, they discovered it wasn't her at all but her friend.

>> this doesn't make any sense. >> what kind of daughter was she, ma'am? >> she was the best. >> campbell, described as sweet and kind by those who knew her here at the restaurant where she worked. >> you would like her immediately, and she was one of the hardest workers we had, and i think that's what our crew here enjoyed most about her, is she would get in the trenches and work right next to you. she wasn't afraid to get her hands dirty, so she was a very, very popular manager. >> a devastating mix-up leaving a grief-stricken family wondering how it all could have happened. >> jason carroll joins us now. what are folks at the hospital saying about it? >> they are still looking into it, anderson, but a spokeswoman would only tell us tonight that at this point there is no

official record of krystle campbell being at the hospital, but her family says this is the place she was identified, so you can imagine this whole ordeal has just compounded their grief. >> jason, appreciate your reporting today. tonight we also remember martin richard. eight years old, a bright, energetic young boy from dorchester. gary tucker has more on the little boy whose life end wade too soon. >> this is how martin richard will be remembered. the beaming eight-year-old boy holding a sign in a picture taken last year when he participated in a walk to promote peace in inner city boston. the sign declaring, no more hurting people, and the word peace. this is also how he'll be remembered. as a brother and son. martin was attending the marathon with his entire family on monday, the finish line in boston's back bay. his father bill and brother henry on the lower left were not hurt, but his sister denise and his mother jane were seriously

injured. his sister, who was a dancer, lost a leg and may lose part of another leg. his father releasing a statement says, my dear son martin has died from the injury sustained in the attack in boston. my wife and daughter are both recovering from serious injuries. we thank our family and friends, those we know and those we have never met, for their thoughts and prayers. i ask that you continue to pray for my family as we remember martin. we also ask for your patience and for privacy as we work to simultaneously grieve and recover. thank you. in front of the richard family house in the dorchester section of boston, we saw flowers. we saw bill richard come home monday night without his son, daughter and wife. >> he looked like he was in a state of shock, and i said bill. he didn't answer me. he just walked slowly into the house. his friend came over, and i said, is everything okay, and he said no. martin was the little boy that was killed.

and i was speechless. and i didn't -- i think he probably said something about denise and the little girl, but i was really interested -- >> his wife and daughter? >> right. i was in such a state of shock, i didn't hear what he said. i started to cry, and i said please, if there's anything we can do, just let him know i am here. >> this is also how martin will be remembered. a boston bruins fan, attending a hockey game at the rink. he will also be remembered like this, a faithful boy who regularly attended church with his family. and friendly and smart, too, as his school said in a statement. martin was a bright, energetic young boy who had big dreams and high hopes for his future. we are heartbroken by this loss. martin's relatives took to twitter to write about the eight-year-old. one cousin saying, i love you, martin. you will be in my mind forever and ever. and martin will also be remembered this way, from an aunt on twitter writing, martin,

you were the sweetest, funniest boy. i'm going to miss you so much. but now you are an angel. >> it's still all so hard to believe, gary tucker joinds me now. you were at a vigil for the victims tonight in dorchester. >> it was very moving because it was entirely word of mouth. early this afternoon there was no word of any vigil. it turns out tonight between 1,000 and 1200 people showed up to seek solace with each other, comfort with each other and honor all three of the people who died, including little martin. it was only about a mile away from his house. an interesting thing, anderson, they also honored the first responders who did such an amazing job helping so many people. >> and saved so many lives, no doubt about it. gary, i appreciate the reporting. a lot more to talk about. joining me now is bill fiore, a friend of the richard family. bill, i'm so sorry for your loss. what was martin like?

>> wow. martin was a remarkable young man and just a kid, really. eight years old. a wonderful athlete, a bright student. >> he loved the bruins. >> he loved the bruins. he loved the red sox, too. the headmaster at the school, i was talking to him before we went on the air, and he wanted me to emphasize he was not only a great athlete, but a great student, very compassionate, very caring. when there was another student struggling in the class, they turned to martin to help tutor him along. a quiet but compassionate kid and someone who was a leader. >> we don't want to do anything to intrude on the family's privacy, but martin's mom and sister are also in the hospital. >> yeah. i'm sorry to say that denise, his mom, took a wound to the head with shrapnel, and she's been in surgery. and his little sister janie, wonderful, sweet girl, also lost

a limb. lost a leg. >> and she just started dancing. >> yeah, she's an irish step dancer, loves it, and everyone said if anybody is going to bounce back from this, it's janie. she's a pistol, a tough kid, energetic. i don't think her dancing days are over. >> i certainly hope not. i know we haven't talked to martin's dad, but the family, it's -- they'll never be the same, obviously. >> no. we've always thought of them -- we've lived in the same neighborhood and i've had the opportunity to cover them in the local newspaper, and they're a family you would want for neighbors. they are totally civic minded. the neighborhood runs around their house. we've always thought of them as one unit, almost like a singular, the richards. they're always together anywhere they go, to the sports fields, school or church, you see all five of them.

that's no longer the case. >> we saw the community coming out for them tonight and no doubt will be there for them in the days ahead. >> there's no question boston is going to rally, dorchester is going to rally in a big way for this family. dad i'm still worried about, but we're also worried about the health of janie and denise. >> our thoughts definitely go out to them. more on the hunt for this person or group responsible for this act of terror. some late developments, photos of what's left of one of the pressure cookers likely used to make one of the crude bombs. we'll get our expert's take just ahead. but he's not. ♪ he's an architect with two kids and a mortgage. luckily, he found someone who gave him a fresh perspective on his portfolio. and with some planning and effort, hopefully bob can retire at a more appropriate age.

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♪ the new york yankees paying tribute to boston tonight with the neil diamond song "sweet caroline" the song is a staple at the yankees games after a moment of silence for the victims. outside the stadium, a powerful message, "united we stand." two of their rivals coming together. tonight we know more about the bombs that were used in

yesterday's terrorist attack. the fbi has made some progress on that front, but as far as suspects, let alone arrests, nothing. they have a lot of information to sort through and analyze, and that, obviously, is going to take time. joining me now is cnn contributor secretary for homeland security julieann kyle, and a former fbi director, tom fuentes. julie ann, we've been showing this picture of a pressure cooker device in a bag. what do you make of where this investigation stands? >> it's going to be for the f forensics to reassemble the devices. this black wrapping around it, where might that have come from, as well as the eyewitness accounts and pictures and all the stuff the fbi is asking for from people who were there, runners, family members. they're going to both go on simultaneously, one at quantico

and one obviously here or at d.c. they're putting tremendous emphasis on who saw what here, and that's because i think there are probably gaps in terms of timing of the photographs they have. they're probably thinking the perpetrator was here on-site and put the packages down. they're hoping someone has pictures and someone comes forward. >> the fact they're still asking for the public's help -- >> means there's a gap, or they want as much information as possible, and then it's just going to take days and weeks and months. and that's the one thing to say to people watching, that this is not going to happen in tv time. this may be very slow, methodical. you heard almost all the political leadership say today, you know, this may not be tomorrow. it might not even be friday. this is going to take a long time, but eventually there will be an arrest. it's not just investigation, they're building a criminal case as well that they've got to put in a u.s. court, and that has to be very, very clean. >> john, what are you hearing from your sources?

>> given the chaos of the scene, people running around frantically, people kicked around, they think they did a good job of the pieces from the pressure cooker. they think they've done a fantastic job finding out what happened, how this was done. but julie, in an investigative term, layman's terms, they're looking for help. they have a pretty good idea of the timing, of where the devices were, but nothing yet that they've seen in the imagery that has a placement. the who part is the big missing question here. so now it's off to quantico, everything they've recovered, and they're still looking at that site. everything over there is still in lockdown to see if they can find a fingerprint, any kind of personal identifyer, a dna sample, something. and if that doesn't work, you look at serial numbers, try to retrace where this product came from, who might have sold it, and if you can get there, to whom?

>> you were involved in the olympic park bombing in that investigation down in atlanta. in terms of that timeline, can you kind of walk us through the steps in that investigation which might give kind of a sense of the timeline on this investigation? obviously very different, but how long, how methodical an investigation is it? how long does it take? >> well, it was a little bit quicker putting the device information together. the night of the bombing, i was on duty. i was the assistant commander that evening and the bomb went off about 1:10 or 1:15 a.m., and we got the phone call about 30 seconds later that we had the bombing. we could see it on one of the screens in the command post. put it up on the bigger screen. and we knew because an individual, in fact, richard jewel, working as a security guard for that pavilion, had reported to a georgia bureau of investigation officer and an fbi agent that he knew walking by that there was a suspicious green knapsack under a park bench. so they went over, they looked under the flap and they saw what

appeared to be the pipe bomb, the wires and a plastic food storage container containing nails. so the two law enforcement officers immediately moved the crowd down the hill, and as they were getting the crowd out of the way and further down below, the device detonated, killing one woman, and then later a journalist had a heart attack running to the scene. but the fact that a trained -- two trained bomb techs actually saw a look at that device under the lid of the knapsack and immediately went to work to get the people out of harm's way gave them a great indication of how it was set up, how it was put together even before it exploded. so that was huge. and the fbi was able to trace later, but it took months to track down the roofing nails that were used because they were able to determine what company made those nails, and then because of a unique glitch in the company's equipment, there was a batch made that had a slight deformity that made that

unique. they were able to match those nails to a particular batch sold at a particular time and place prior to the bombing. so these investigations, even that investigation with all of that advanced information took weeks and months to put all that information together. >> are you optimistic, julia? >> i don't think in those terms. i've been in government too long. you get lucky and you combine facts, and i think people who don't work in this field have to just recognize that it's -- you know, a lot of times it is luck. a lot of times it's putting the pieces together, but it's not perfect. a lot of people say, how could this happen? there is one safe marathon and that's no marathon at all. we live in a society where people like to move around, they like to go to events. so i'm optimistic that we'll put a lot of the pieces together, and i'm also optimistic that this will be a serious investment of time and money. if it leads to the right person any time soon, somebody may know

but it's certainly not us on the outside. >> julia, thank you, tom fuen s fuentes. we've been talking to a people shaken by the blasts, but also a city standing tall, moving forward. today president obama repeated his promise to bring the killers to justice. he also said the people of boston is proof that americans will prevail. listen. >> the american people refuse to be tore rerrorized. because what the world saw yesterday, the aftermath of the explosion, are stories of heroism, kindness, generosity and love. >> i looked down and there was actually a person who was bleeding on the street. they were right off the sidewalk just laying down. luckily this restaurant was helping them and it was great to actually see people teaming up together to help the people that were in need. >> exhausted runners who kept running to the nearest hospital to give blood, and those who stayed to tend to the wounded, some tearing off their own clothes to make tourniquets. the first responders who ran into the chaos to save lives.

>> you see on the video now all these guys jumping over fences trying to help out. people activated immediately, whether they were volunteers or the boston police. >> the men and women were still treating the wounded at some of the best hospitals in the world. and the medical students who hurried to help saying, when we heard, we all came in. >> i thought that i would be one of the first people there because i was 25 yards away from the finish line when the bombs went off, and by the time i got there, there were so many first responders and volunteer physicians, it was -- i've never seen anything like that. >> the police who opened their churches and ministered to the hurt and the fearful, and the good people of boston who opened their homes to the victims of this attack and those shaken by it. so if you want to know who we are, what america is, how we respond to evil, that's it. selflessly, compassionately, unafraid. >> we'll be right back.

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